CN116075954A - 正极集流体、二次电池和用电装置 - Google Patents

正极集流体、二次电池和用电装置 Download PDF

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Publication number
CN116075954A
CN116075954A CN202180006345.6A CN202180006345A CN116075954A CN 116075954 A CN116075954 A CN 116075954A CN 202180006345 A CN202180006345 A CN 202180006345A CN 116075954 A CN116075954 A CN 116075954A
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CN
China
Prior art keywords
layer
sub
melting point
metal
positive electrode
Prior art date
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Pending
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CN202180006345.6A
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English (en)
Chinese (zh)
Inventor
刘欣
黄起森
李铭领
刘向辉
彭佳
李铖
秦猛
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Contemporary Amperex Technology Co Ltd
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Contemporary Amperex Technology Co Ltd
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Application filed by Contemporary Amperex Technology Co Ltd filed Critical Contemporary Amperex Technology Co Ltd
Publication of CN116075954A publication Critical patent/CN116075954A/zh
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/661—Metal or alloys, e.g. alloy coatings
    • H01M4/662—Alloys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/661—Metal or alloys, e.g. alloy coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/665—Composites
    • H01M4/666—Composites in the form of mixed materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/665—Composites
    • H01M4/667—Composites in the form of layers, e.g. coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/668—Composites of electroconductive material and synthetic resins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/536—Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
    • H01M2004/028—Positive electrodes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Cell Electrode Carriers And Collectors (AREA)
CN202180006345.6A 2021-09-01 2021-09-01 正极集流体、二次电池和用电装置 Pending CN116075954A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/115979 WO2023028919A1 (zh) 2021-09-01 2021-09-01 正极集流体、二次电池和用电装置

Publications (1)

Publication Number Publication Date
CN116075954A true CN116075954A (zh) 2023-05-05

Family

ID=85411838

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202180006345.6A Pending CN116075954A (zh) 2021-09-01 2021-09-01 正极集流体、二次电池和用电装置

Country Status (6)

Country Link
US (1) US11791472B2 (ko)
EP (1) EP4167326A1 (ko)
JP (1) JP7472390B2 (ko)
KR (1) KR102568634B1 (ko)
CN (1) CN116075954A (ko)
WO (1) WO2023028919A1 (ko)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190341622A1 (en) * 2017-12-05 2019-11-07 Contemporary Amperex Technology Co., Limited Battery
CN111180737A (zh) * 2019-05-31 2020-05-19 宁德时代新能源科技股份有限公司 锂离子二次电池、电芯及负极极片
CN112290029A (zh) * 2019-04-28 2021-01-29 宁德时代新能源科技股份有限公司 正极集流体、正极极片、电化学装置、电动汽车及电子产品

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2013151046A1 (ja) * 2012-04-04 2015-12-17 株式会社Uacj 集電体、電極構造体、非水電解質電池及び蓄電部品
JP2014102954A (ja) * 2012-11-19 2014-06-05 Toyota Motor Corp 電池及びその製造方法
JP6938128B2 (ja) 2016-10-14 2021-09-22 東洋鋼鈑株式会社 電池用集電体および電池
EP3467919A1 (en) * 2017-10-09 2019-04-10 Robert Bosch GmbH Current collector with an improved security behavior and battery cell comprising the same
KR102097444B1 (ko) * 2019-01-30 2020-04-06 주식회사 유앤에스에너지 양극 전극용 집전체
KR102158737B1 (ko) * 2019-02-14 2020-09-22 주식회사 유앤에스에너지 전극용 집전체
CN110943215B (zh) 2019-05-31 2020-12-04 宁德时代新能源科技股份有限公司 锂离子二次电池
CN111180666B (zh) 2019-06-28 2021-12-24 宁德时代新能源科技股份有限公司 一种电极极片和电化学装置
CN213546523U (zh) 2020-10-19 2021-06-25 深圳市海鸿新能源技术有限公司 一种极片、电芯及二次电池

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190341622A1 (en) * 2017-12-05 2019-11-07 Contemporary Amperex Technology Co., Limited Battery
CN112290029A (zh) * 2019-04-28 2021-01-29 宁德时代新能源科技股份有限公司 正极集流体、正极极片、电化学装置、电动汽车及电子产品
CN111180737A (zh) * 2019-05-31 2020-05-19 宁德时代新能源科技股份有限公司 锂离子二次电池、电芯及负极极片

Also Published As

Publication number Publication date
US11791472B2 (en) 2023-10-17
KR102568634B1 (ko) 2023-08-22
JP2023538491A (ja) 2023-09-08
JP7472390B2 (ja) 2024-04-22
US20230282838A1 (en) 2023-09-07
KR20230035331A (ko) 2023-03-13
WO2023028919A1 (zh) 2023-03-09
EP4167326A1 (en) 2023-04-19

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